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Kadian S, Gopalakrishnan S, Selvamani V, Khan S, Meyer T, Thomas R, Rana MM, Irazoqui PP, Verma MS, Rahimi R. Smart Capsule for Targeted Detection of Inflammation Levels Inside the GI Tract. IEEE Trans Biomed Eng 2024; 71:1565-1576. [PMID: 38096093 DOI: 10.1109/tbme.2023.3343337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Effective management of Inflammatory Bowel Disease (IBD) is contingent upon frequent monitoring of inflammation levels at targeted locations within the gastrointestinal (GI) tract. This is crucial for assessing disease progression and detecting potential relapses. To address this need, a novel single-use capsule technology has been devised that enables region-specific inflammation measurement, thereby facilitating repeatable monitoring within the GI tract. The capsule integrates a pH-responsive coating for location-specific activation, a chemiluminescent paper-based myeloperoxidase (MPO) sensor for inflammation detection, and a miniaturized photodetector, complemented by embedded electronics for real-time wireless data transmission. Demonstrating linear sensitivity within the physiological MPO concentration range, the sensor is capable of effectively identifying inflammation risk in the GI fluid. Luminescence emitted by the sensor, proportional to MPO concentration, is converted into an electrical signal by the photodetector, generating a quantifiable energy output with a sensitivity of 6.14 µJ/U.ml-1. The capsule was also tested with GI fluids collected from pig models simulating various inflammation states. Despite the physiological complexities, the capsule consistently activated in the intended region and accurately detected MPO levels with less than a 5% variation between readings in GI fluid and a PBS solution. This study heralds a significant step towards minimally invasive, in situ GI inflammation monitoring, potentially revolutionizing personalized IBD management and patient-specific therapeutic strategies.
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Martinov Nestorov J, Sokic-Milutinovic A, Pavlovic Markovic A, Krstic M. Could Capsule Endoscopy Be Useful in Detection of Suspected Small Bowel Bleeding and IBD-10 Years of Single Center Experience. Diagnostics (Basel) 2024; 14:862. [PMID: 38732278 PMCID: PMC11083052 DOI: 10.3390/diagnostics14090862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 04/12/2024] [Accepted: 04/14/2024] [Indexed: 05/13/2024] Open
Abstract
A retrospective study in patients who underwent video capsule endoscopy (VCE) between 2006 and 2016 was conducted in the Clinic for gastroenterology and Hepatology, University Clinical Center of Serbia. A total of 245 patients underwent VCE. In 198 patients the indication was obscure gastrointestinal bleeding (OGIB), with 92 patients having overt and the other 106 occult bleeding. The remaining 47 patients underwent VCE due to suspected small bowel (SB) disease (i.e., Von Hippel-Lindau syndrome, familial adenomatous polyposis, Peutz Jeghers syndrome, Crohn's disease, prolonged diarrhea, abdominal pain, congenital lymphangiectasia, protein-losing enteropathy, tumors, refractory celiac disease, etc.). VCE identified a source of bleeding in 38.9% of patients (in the obscure overt group in 48.9% of patients, and in the obscure occult group in 30.2% of patients). The most common findings were angiodysplasias, tumors, Meckel's diverticulum and Crohn's disease. In the smaller group of patients with an indication other than OGIB, 38.3% of patients had positive VCE findings. The most common indication is OGIB, and the best candidates are patients with overt bleeding; patients with IBD should be evaluated in this setting.
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Affiliation(s)
- Jelena Martinov Nestorov
- School of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (A.S.-M.); (A.P.M.); (M.K.)
- Clinic for Gastroenterology and Hepatology, University Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Aleksandra Sokic-Milutinovic
- School of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (A.S.-M.); (A.P.M.); (M.K.)
- Clinic for Gastroenterology and Hepatology, University Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Aleksandra Pavlovic Markovic
- School of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (A.S.-M.); (A.P.M.); (M.K.)
- Clinic for Gastroenterology and Hepatology, University Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Miodrag Krstic
- School of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (A.S.-M.); (A.P.M.); (M.K.)
- Clinic for Gastroenterology and Hepatology, University Clinical Center of Serbia, 11000 Belgrade, Serbia
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Yokote A, Umeno J, Kawasaki K, Fujioka S, Fuyuno Y, Matsuno Y, Yoshida Y, Imazu N, Miyazono S, Moriyama T, Kitazono T, Torisu T. Small bowel capsule endoscopy examination and open access database with artificial intelligence: The SEE-artificial intelligence project. DEN OPEN 2024; 4:e258. [PMID: 37359150 PMCID: PMC10288072 DOI: 10.1002/deo2.258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 05/31/2023] [Accepted: 06/05/2023] [Indexed: 06/28/2023]
Abstract
OBJECTIVES Artificial intelligence (AI) may be practical for image classification of small bowel capsule endoscopy (CE). However, creating a functional AI model is challenging. We attempted to create a dataset and an object detection CE AI model to explore modeling problems to assist in reading small bowel CE. METHODS We extracted 18,481 images from 523 small bowel CE procedures performed at Kyushu University Hospital from September 2014 to June 2021. We annotated 12,320 images with 23,033 disease lesions, combined them with 6161 normal images as the dataset, and examined the characteristics. Based on the dataset, we created an object detection AI model using YOLO v5 and we tested validation. RESULTS We annotated the dataset with 12 types of annotations, and multiple annotation types were observed in the same image. We test validated our AI model with 1396 images, and sensitivity for all 12 types of annotations was about 91%, with 1375 true positives, 659 false positives, and 120 false negatives detected. The highest sensitivity for individual annotations was 97%, and the highest area under the receiver operating characteristic curve was 0.98, but the quality of detection varied depending on the specific annotation. CONCLUSIONS Object detection AI model in small bowel CE using YOLO v5 may provide effective and easy-to-understand reading assistance. In this SEE-AI project, we open our dataset, the weights of the AI model, and a demonstration to experience our AI. We look forward to further improving the AI model in the future.
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Affiliation(s)
- Akihito Yokote
- Department of Medicine and Clinical Science Graduate School of Medical Science Kyushu University Fukuoka Japan
| | - Junji Umeno
- Department of Medicine and Clinical Science Graduate School of Medical Science Kyushu University Fukuoka Japan
| | - Keisuke Kawasaki
- Department of Medicine and Clinical Science Graduate School of Medical Science Kyushu University Fukuoka Japan
| | - Shin Fujioka
- Department of Endoscopic Diagnostics and Therapeutics Kyushu University Hospital Fukuoka Japan
| | - Yuta Fuyuno
- Department of Medicine and Clinical Science Graduate School of Medical Science Kyushu University Fukuoka Japan
| | - Yuichi Matsuno
- Department of Medicine and Clinical Science Graduate School of Medical Science Kyushu University Fukuoka Japan
| | - Yuichiro Yoshida
- Department of Medicine and Clinical Science Graduate School of Medical Science Kyushu University Fukuoka Japan
| | - Noriyuki Imazu
- Department of Medicine and Clinical Science Graduate School of Medical Science Kyushu University Fukuoka Japan
| | - Satoshi Miyazono
- Department of Medicine and Clinical Science Graduate School of Medical Science Kyushu University Fukuoka Japan
| | - Tomohiko Moriyama
- International Medical Department Kyushu University Hospital Fukuoka Japan
| | - Takanari Kitazono
- Department of Medicine and Clinical Science Graduate School of Medical Science Kyushu University Fukuoka Japan
| | - Takehiro Torisu
- Department of Medicine and Clinical Science Graduate School of Medical Science Kyushu University Fukuoka Japan
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Turck D, Dratsch T, Schröder L, Lorenz F, Dinter J, Bürger M, Schiffmann L, Kasper P, Allo G, Goeser T, Chon SH, Nierhoff D. A convolutional neural network for bleeding detection in capsule endoscopy using real clinical data. MINIM INVASIV THER 2023; 32:335-340. [PMID: 37640056 DOI: 10.1080/13645706.2023.2250445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 08/14/2023] [Indexed: 08/31/2023]
Abstract
BACKGROUND The goal of the present study was to develop a convolutional neural network for the detection of bleedings in capsule endoscopy videos using realistic clinical data from one single-centre. METHODS Capsule endoscopy videos from all 133 patients (79 male, 54 female; meanage = 53.73 years, SDage = 26.13) who underwent capsule endoscopy at our institution between January 2014 and August 2018 were screened for pathology. All videos were screened for pathology by two independent capsule experts and confirmed findings were checked again by a third capsule expert. From these videos, 125 pathological findings (individual episodes of bleeding spanning a total of 5696 images) and 103 non-pathological findings (sections of normal mucosal tissue without pathologies spanning a total of 7420 images) were used to develop and validate a neural network (Inception V3) using transfer learning. RESULTS The overall accuracy of the model for the detection of bleedings was 90.6% [95%CI: 89.4%-91.7%], with a sensitivity of 89.4% [95%CI: 87.6%-91.2%] and a specificity of 91.7% [95%CI: 90.1%-93.2%]. CONCLUSION Our results show that neural networks can detect bleedings in capsule endoscopy videos under realistic, clinical conditions with an accuracy of 90.6%, potentially reducing reading time per capsule and helping to improve diagnostic accuracy.
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Affiliation(s)
- Dorothee Turck
- Department of Medicine, University of Cologne, Cologne, Germany
| | - Thomas Dratsch
- Institute of Diagnostic and Interventional Radiology, University Hospital Cologne, Cologne, Germany
| | - Lorenz Schröder
- Department of Medicine, University of Cologne, Cologne, Germany
| | - Florian Lorenz
- Department of Gastroenterology and Hepatology, University Hospital Cologne, Cologne, Germany
| | - Johanna Dinter
- Gastroenterologische Schwerpunktpraxis Stähler, Cologne, Germany
| | - Martin Bürger
- Department of Gastroenterology and Hepatology, University Hospital Cologne, Cologne, Germany
| | - Lars Schiffmann
- Department of General, Visceral, Cancer, and Transplant Surgery, University Hospital Cologne, Cologne, Germany
| | - Philipp Kasper
- Department of Gastroenterology and Hepatology, University Hospital Cologne, Cologne, Germany
| | - Gabriel Allo
- Department of Gastroenterology and Hepatology, University Hospital Cologne, Cologne, Germany
| | - Tobias Goeser
- Department of Gastroenterology and Hepatology, University Hospital Cologne, Cologne, Germany
| | - Seung-Hun Chon
- Department of Gastroenterology and Hepatology, University Hospital Cologne, Cologne, Germany
- Department of General, Visceral, Cancer, and Transplant Surgery, University Hospital Cologne, Cologne, Germany
| | - Dirk Nierhoff
- Department of Gastroenterology and Hepatology, University Hospital Cologne, Cologne, Germany
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Yang KY, Fang YJ, Karmakar R, Mukundan A, Tsao YM, Huang CW, Wang HC. Assessment of Narrow Band Imaging Algorithm for Video Capsule Endoscopy Based on Decorrelated Color Space for Esophageal Cancer. Cancers (Basel) 2023; 15:4715. [PMID: 37835409 PMCID: PMC10571786 DOI: 10.3390/cancers15194715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/15/2023] [Accepted: 09/24/2023] [Indexed: 10/15/2023] Open
Abstract
Video capsule endoscopy (VCE) is increasingly used to decrease discomfort among patients owing to its small size. However, VCE has a major drawback of not having narrow band imaging (NBI) functionality. The current VCE has the traditional white light imaging (WLI) only, which has poor performance in the computer-aided detection (CAD) of different types of cancer compared to NBI. Specific cancers, such as esophageal cancer (EC), do not exhibit any early biomarkers, making their early detection difficult. In most cases, the symptoms are unnoticeable, and EC is diagnosed only in later stages, making its 5-year survival rate below 20% on average. NBI filters provide particular wavelengths that increase the contrast and enhance certain features of the mucosa, thereby enabling early identification of EC. However, VCE does not have a slot for NBI functionality because its size cannot be increased. Hence, NBI image conversion from WLI can presently only be achieved in post-processing. In this study, a complete arithmetic assessment of the decorrelated color space was conducted to generate NBI images from WLI images for VCE of the esophagus. Three parameters, structural similarity index metric (SSIM), entropy, and peak-signal-to-noise ratio (PSNR), were used to assess the simulated NBI images. Results show the good performance of the NBI image reproduction method with SSIM, entropy difference, and PSNR values of 93.215%, 4.360, and 28.064 dB, respectively.
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Affiliation(s)
- Kai-Yao Yang
- Department of Medical Material Research, Kaohsiung Armed Forces General Hospital, 2, Zhongzheng 1st. Rd., Lingya District, Kaohsiung City 80284, Taiwan;
| | - Yu-Jen Fang
- Department of Internal Medicine, National Taiwan University Hospital, Yun-Lin Branch, No. 579, Sec. 2, Yunlin Rd., Dou-Liu 64041, Taiwan;
- Department of Internal Medicine, National Taiwan University College, No. 1 Jen Ai Rd. Sec. 1, Taipei 10051, Taiwan
| | - Riya Karmakar
- Department of Mechanical Engineering, National Chung Cheng University, 168, University Rd., Min Hsiung, Chiayi 62102, Taiwan; (R.K.); (A.M.); (Y.-M.T.)
| | - Arvind Mukundan
- Department of Mechanical Engineering, National Chung Cheng University, 168, University Rd., Min Hsiung, Chiayi 62102, Taiwan; (R.K.); (A.M.); (Y.-M.T.)
| | - Yu-Ming Tsao
- Department of Mechanical Engineering, National Chung Cheng University, 168, University Rd., Min Hsiung, Chiayi 62102, Taiwan; (R.K.); (A.M.); (Y.-M.T.)
| | - Chien-Wei Huang
- Department of Medical Material Research, Kaohsiung Armed Forces General Hospital, 2, Zhongzheng 1st. Rd., Lingya District, Kaohsiung City 80284, Taiwan;
- Department of Nursing, Tajen University, 20, Weixin Rd., Yanpu Township, Pingtung 90741, Taiwan
| | - Hsiang-Chen Wang
- Department of Mechanical Engineering, National Chung Cheng University, 168, University Rd., Min Hsiung, Chiayi 62102, Taiwan; (R.K.); (A.M.); (Y.-M.T.)
- Department of Medical Research, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, No. 2, Minsheng Road, Dalin, Chiayi 62247, Taiwan
- Hitspectra Intelligent Technology Co., Ltd., 4F, No.2, Fuxing 4th Rd., Qianzhen District, Kaohsiung City 80661, Taiwan
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Yu L, Liu S, Jia S, Xu F. Emerging frontiers in drug delivery with special focus on novel techniques for targeted therapies. Biomed Pharmacother 2023; 165:115049. [PMID: 37364480 DOI: 10.1016/j.biopha.2023.115049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 06/16/2023] [Accepted: 06/20/2023] [Indexed: 06/28/2023] Open
Abstract
The management and treatment of disease are achieved via the use of pharmacologically active substances or drugs. Drugs do not, however, have an intrinsic ability to be effective; rather, how well they work depends on how they are administered or supplied. Treatment of a variety of biological illnesses, such as autoimmune disorders, cancer, and bacterial infections, requires effective drug delivery. Drug absorption, distribution, metabolism, duration of therapeutic impact, pharmacokinetics, excretion, and toxicity can all be impacted by drug administration. Improved chemistry and materials are required for the delivery of therapeutic concentration of novel treatments to the specified targets within the body, as well as for the necessary duration of time. This requirement is accompanied by the development of new therapeutics. Formulating a medication as a DDS is a promising strategy for directly addressing numerous typical barriers to adherence, such as frequent dosage, such as frequent dosage, side effects, and a delayed beginning of the action. In the current review, we give a compendium of drug delivery and controlled release and subsequently highlight some of the newest developments in the realm, with a particular emphasis on cutting-edge methods for targeted therapy. In each instance, we outline the obstacles to efficient drug administration as well as the chemical and material developments that are allowing the sector to overcome these obstacles and have a positive clinical impact.
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Affiliation(s)
- Ling Yu
- Department of Pharmacy, the Second Hospital of Jilin University, Changchun 130041, China
| | - Shengmao Liu
- Department of Nephrology, the Second Hospital of Jilin University, Changchun 130041, China
| | - Shengnan Jia
- Digestive Diseases center, Department of Hepatopancreatobiliary Medicine, The Second Hospital, Jilin University, Changchun 130041, China
| | - Feng Xu
- Department of Nephrology, the Second Hospital of Jilin University, Changchun 130041, China.
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Grounds GS, Dent H, Nunes C, Dhar V. Tubeless field anaesthesia for surgical removal of an aspirated endoscopy capsule. Anaesth Rep 2023; 11:e12242. [PMID: 37588044 PMCID: PMC10425334 DOI: 10.1002/anr3.12242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/25/2023] [Indexed: 08/18/2023] Open
Abstract
Capsule endoscopy is a safe, minimally invasive procedure used to investigate gastrointestinal bleeding of unknown origin that persists or recurs after a negative initial endoscopy. The most common adverse effects of capsule endoscopy include abdominal pain, nausea and vomiting. Capsule pulmonary aspiration, although a rare complication, has been reported in the literature. Most reported cases resolve without further medical intervention. In these cases, the capsule is either expelled by coughing, or it re-enters the oropharynx and is then swallowed. In a small number of cases, the capsule remains in the lung, unable to be expectorated. This requires prompt diagnosis and emergency bronchoscopic removal under general anaesthesia. Due to the smooth, rounded surfaces of the capsule, it may be difficult to grasp, and consequently extraction may be technically challenging. The existing literature contains limited documentation on anaesthetic and surgical approaches for managing an aspirated endoscopy capsule. In this case report, we present the management of an aspirated endoscopy capsule in a district general hospital, in which thoracic surgery was not available. Local resources were used to manage this potentially life-threatening complication without patient transfer. In our case, we provided a tubeless field to optimise surgical access. This facilitated the successful surgical extraction of the endoscopy capsule from the left main bronchus.
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Affiliation(s)
- G. S. Grounds
- Department of AnaesthesiaKent and Canterbury HospitalCanterburyKentUK
| | - H. Dent
- Department of AnaesthesiaKent and Canterbury HospitalCanterburyKentUK
| | - C. Nunes
- Department of GastroenterologyKent and Canterbury HospitalCanterburyKentUK
| | - V. Dhar
- Department of Ear, Nose and Throat SurgeryWilliam Harvey HospitalAshfordKentUK
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8
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Varkey J, Jonsson V, Hessman E, De Lange T, Hedenström P, Oltean M. Diagnostic yield for video capsule endoscopy in gastrointestinal graft- versus -host disease: a systematic review and metaanalysis. Scand J Gastroenterol 2023; 58:945-952. [PMID: 36740843 DOI: 10.1080/00365521.2023.2175621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/24/2023] [Accepted: 01/30/2023] [Indexed: 02/07/2023]
Abstract
BACKGROUND The gastrointestinal tract is the second most involved organ for graft-versus-host disease where involvement of the small intestine is present in 50% of the cases. Therefore, the use of a non-invasive investigation i.e., video capsule endoscopy (VCE) seems ideal in the diagnostic work-up, but this has never been systematically evaluated before. OBJECTIVE The aim of this systematic review was to determine the efficacy and safety of VCE, in comparison with conventional endoscopy in patients who received hematopoietic stem cell transplantation. METHOD Databases searched were PubMed, Scopus, EMBASE, and Cochrane CENTRAL. All databases were searched from their inception date until June 17, 2022. The search identified 792 publications, of which 8 studies were included in our analysis comprising of 232 unique patients. Efficacy was calculated in comparison with the golden standard i.e., histology. Risk of bias assessment was performed using the Quality Assessment of Diagnostic Accuracy Studies-2 tool. RESULTS The pooled sensitivity was higher for VCE at 0.77 (95% CI: 0.60-0.89) compared to conventional endoscopy 0.62 (95% CI: 0.47-0.75) but the difference was not statistically significant (p = 0.155, Q = 2.02). Similarly, the pooled specificity was higher for VCE at 0.68 (95% CI: 0.46-0.84) than for conventional endoscopy at 0.58 (95% CI: 0.40-0.74) but not statistically significant (p = 0.457, Q = 0.55). Moreover, concern for adverse events such as intestinal obstruction or perforation was not justified since none of the capsules were retained in the small bowel and no perforations occurred in relation to VCE. A limitation to the study is the retrospective approach seen in 50% of the studies. CONCLUSION The role of video capsule endoscopy in diagnosing or dismissing graft-versus-host disease is not yet established and requires further studies. However, the modality appears safe in this cohort.
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Affiliation(s)
- Jonas Varkey
- Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Sahlgrenska Intestinal Failure and Transplant Centre, Gothenburg, Sweden
- Division of Gastroenterology, Department of Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Viktor Jonsson
- Department of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Eva Hessman
- Biomedical Library, Gothenburg University Library, University of Gothenburg, Gothenburg, Sweden
| | - Thomas De Lange
- Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Medical Department, Sahlgrenska University Hospital-Möndal, Gothenburg, Sweden
| | - Per Hedenström
- Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Division of Gastroenterology, Department of Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Mihai Oltean
- Department of Surgery, Institute for Clinical Sciences, University of Gothenburg, Gothenburg, Sweden
- Transplant Institute, Sahlgrenska University Hospital, Gothenburg, Sweden
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Boullier M, Fohlen A, Viennot S, Alves A. Gastrointestinal bleeding of undetermined origin: What diagnostic strategy to propose? J Visc Surg 2023:S1878-7886(23)00089-9. [PMID: 37344277 DOI: 10.1016/j.jviscsurg.2023.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/23/2023]
Abstract
Gastrointestinal bleeding of undetermined origin (GBUO) is defined as gastrointestinal bleeding without an identified cause or location despite an endoscopic assessment including an esogastroduodenal endoscopy (EOGD) and a total colonoscopy. A distinction is made between exteriorized GBUO and non-exteriorized occult GBUO. The causes in the majority of cases (vascular, inflammatory and tumoral) are located in the small intestine. The diagnostic strategy aiming to locate the origin of the GBUO is a real challenge. Innovation in endoscopic and imaging techniques has enabled minimally invasive exploration of the small intestine. In Europe, there is a strong consensus to recommend a video-capsule endoscopy (VCE) as the first-intention study. If there is reason to suspect intestinal obstruction, VCE is contraindicated and a CT-enteroscopy is then performed as first intention. Enteroscopy is performed as a second-line treatment, either for therapeutic purposes after a positive VCE or CT-enteroclysis, or for diagnostic purposes after a negative VCE. Finally, intraoperative enteroscopy (IOE) coupled with surgical exploration should be reserved either for therapeutic purposes in the event of impossibility or failure of preoperative enteroscopy, or for diagnostic purposes in the event of recurrent GBUO after failure of all other studies and explorations of the small intestine.
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Affiliation(s)
- Mathilde Boullier
- Digestive surgery department, university hospital center, avenue de la Côte-de-Nacre, 14000 Caen, France.
| | - Audrey Fohlen
- Uro-digestive imaging and interventional radiology department, university hospital center, 14000 Caen, France; Équipe CERVOxy, ISTCT UMR 6030-CNRS, CEA, Caen Normandie University, GIP Cycéron, 14074 Caen cedex, France
| | - Stéphanie Viennot
- Gastroenterology department, university hospital center, 14000 Caen, France
| | - Arnaud Alves
- Digestive surgery department, university hospital center, avenue de la Côte-de-Nacre, 14000 Caen, France; Inserm 1086 "ANTICIPE" Unit, Centre François-Baclesse "Cancers & Préventions", 14076 Caen cedex, France
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10
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Otoya Moreno G, Aliaga Ramos J, Jáuregui Villafuerte Á. Efficacy-safety profile of the video capsule endoscopy in the study of the small bowel: experience over 100 consecutive procedures. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2023; 115:267-269. [PMID: 36043548 DOI: 10.17235/reed.2022.9102/2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Video capsule endoscopy (VCE) is currently considered the first-line study in the evaluation of the small bowel (SB). Retrospective study including consecutive patients from 2010 to 2021 in two referral endoscopic centers in Peru, who underwent VCE. Inclusion criteria were patients with middle gastrointestinal bleeding, chronic diarrhea and unexplained chronic abdominal pain (endoscopic studies prior to VCE: normal). We mainly used Pillcam SB VCE (Given Imaging, Israel) SB2 and SB3 generations.
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11
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Ishikawa H, Miyazu T, Osawa S. Modified method for attaching a sensor array during small bowel capsule endoscopy. Dig Endosc 2023; 35:400. [PMID: 36434771 DOI: 10.1111/den.14484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 11/23/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Hirotaka Ishikawa
- First Department of Medicine, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Takahiro Miyazu
- First Department of Medicine, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Satoshi Osawa
- Department of Endoscopic and Photodynamic Medicine, Hamamatsu University School of Medicine, Shizuoka, Japan
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12
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Yang W, Li Z, Liu R, Tong X, Wang W, Xu D, Gao S. Application of capsule endoscopy in patients with chronic and recurrent abdominal pain: Abbreviated running title: capsule endoscopy in abdominal pain. Med Eng Phys 2022; 110:103901. [PMID: 36241495 DOI: 10.1016/j.medengphy.2022.103901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 08/15/2022] [Accepted: 10/02/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVE The incidence of chronic and recurrent abdominal pain increases every year, while the diagnosis is still unsatisfactory even after a number of check-ups. This study aimed to evaluate the diagnosis value of capsule endoscopy in patients suffering from chronic and recurrent abdominal pain. METHODS A retrospective case study was performed in 80 chronic and recurrent abdominal pain patients at Xiangyang Central Hospital from January 2013 to November 2017. Meanwhile, diagnoses by capsule endoscopy were collected for analysis. RESULTS Abnormal findings were found in 54 of 80 (67.5%) patients. The findings in chronic and recurrent abdominal pain patients include small intestinal erosion and congestion, small intestinal ulcers, small intestinal parasites, small intestinal vascular malformations, small intestinal polyps, small intestinal diverticulum, and small intestinal lymphangiectasia. There were no immediate significant side effects without being reported up to 1 month after ingestion of the capsule. The capsule was evacuated by all patients. CONCLUSIONS Capsule endoscopy has a great value in the diagnosis of chronic and recurrent abdominal pain with satisfactory safety and less pain for patients. Inflammatory lesions and ulcers in the small intestine account for the majority of positive findings in these patients.
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Affiliation(s)
- Wei Yang
- Department of Gastroenterology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei Province, 441021, China
| | - Zheng Li
- Department of Gastroenterology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei Province, 441021, China
| | - Rui Liu
- Medical School of Xiangyang Vocational and Technical College
| | - Xudong Tong
- Department of Gastroenterology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei Province, 441021, China
| | - Wei Wang
- Department of Gastroenterology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei Province, 441021, China
| | - Dongqiang Xu
- Department of Gastroenterology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei Province, 441021, China
| | - Shan Gao
- Department of Gastroenterology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei Province, 441021, China.
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Quality indicators for capsule endoscopy and deep enteroscopy. Gastrointest Endosc 2022; 96:693-711. [PMID: 36175176 DOI: 10.1016/j.gie.2022.08.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 08/31/2022] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS Capsule endoscopy (CE) and deep enteroscopy (DE) can be useful for diagnosing and treating suspected small-bowel disease. Guidelines and detailed recommendations exist for the use of CE/DE, but comprehensive quality indicators are lacking. The goal of this task force was to develop quality indicators for appropriate use of CE/DE by using a modified RAND/UCLA Appropriateness Method. METHODS An expert panel of 7 gastroenterologists with diverse practice experience was assembled to identify quality indicators. A literature review was conducted to develop a list of proposed quality indicators applicable to preprocedure, intraprocedure, and postprocedure periods. The panelists reviewed the literature; identified and modified proposed quality indicators; rated them on the basis of scientific evidence, validity, and necessity; and determined proposed performance targets. Agreement and consensus with the proposed indicators were verified using the RAND/UCLA Appropriateness Method. RESULTS The voting procedure to prioritize metrics emphasized selecting measures to improve quality and overall patient care. Panelists rated indicators on the perceived appropriateness and necessity for clinical practice. After voting and discussion, 2 quality indicators ranked as inappropriate or uncertain were excluded. Each quality indicator was categorized by measure type, performance target, and summary of evidence. The task force identified 13 quality indicators for CE and DE. CONCLUSIONS Comprehensive quality indicators have not existed for CE or DE. The task force identified quality indicators that can be incorporated into clinical practice. The panel also addressed existing knowledge gaps and posed research questions to better inform future research and quality guidelines for these procedures.
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Quality Indicators for Capsule Endoscopy and Deep Enteroscopy. Am J Gastroenterol 2022; 117:1780-1796. [PMID: 36155365 DOI: 10.14309/ajg.0000000000001903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Capsule endoscopy (CE) and deep enteroscopy (DE) can be useful for diagnosing and treating suspected small-bowel disease. Guidelines and detailed recommendations exist for the use of CE/DE, but comprehensive quality indicators are lacking. The goal of this task force was to develop quality indicators for appropriate use of CE/DE by using a modified RAND/UCLA Appropriateness Method. METHODS An expert panel of 7 gastroenterologists with diverse practice experience was assembled to identify quality indicators. A literature review was conducted to develop a list of proposed quality indicators applicable to preprocedure, intraprocedure, and postprocedure periods. The panelists reviewed the literature; identified and modified proposed quality indicators; rated them on the basis of scientific evidence, validity, and necessity; and determined proposed performance targets. Agreement and consensus with the proposed indicators were verified using the RAND/UCLA Appropriateness Method. RESULTS The voting procedure to prioritize metrics emphasized selecting measures to improve quality and overall patient care. Panelists rated indicators on the perceived appropriateness and necessity for clinical practice. After voting and discussion, 2 quality indicators ranked as inappropriate or uncertain were excluded. Each quality indicator was categorized by measure type, performance target, and summary of evidence. The task force identified 13 quality indicators for CE and DE. DISCUSSION Comprehensive quality indicators have not existed for CE or DE. The task force identified quality indicators that can be incorporated into clinical practice. The panel also addressed existing knowledge gaps and posed research questions to better inform future research and quality guidelines for these procedures.
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Which model of small bowel capsule endoscopy has a better diagnostic yield? A systematic review and meta-analysis. Acta Gastroenterol Belg 2022; 85:509-517. [DOI: 10.51821/85.3.10322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Background and study aims: Small-bowel capsule endoscopy (SBCE) is a safe and efficient method for diagnosis of small-bowel diseases. Since its development, different models have appeared. The aim of this study was to analyze which of the different models of SBCE has the best diagnostic yield.
Patients and methods: Extensive medical literature research was reviewed, using MESH terms, searching studies comparing different SBCE types. We analyzed the diagnostic yield of all the comparisons and when there were 2 or more studies that compared the same model of SBCEs, a meta-analysis was performed.
Results: Ten eligible studies including 1065 SBCEs procedures were identified. The main indication was occult gastrointestinal bleeding in 9/10 studies. Two of them included anemia, chronic diarrhea and/or chronic abdominal pain. The indication in one article was celiac disease. In 9 studies, different types of SBCEs (MiroCam, Endocapsule, OMOM and CapsoCam) were compared with PillCam (SB, SB2 and SB3). Three studies compared MiroCam vs PillCam and CapsoCam vs PillCam, while two studies contrast Endocapsule vs PillCam. None of the SBCEs show superiority over PillCam [OR 0.78 (95%CI;0.60-1.01)]. One study compared SBCEs other than Pillcam (MiroCam vs Endocapsule). Nine studies did not find statistical differences between SBCEs, one showed better diagnostic yield of Mirocam compared with PillCam SB3 (p=0.02). The difference between these SBCE was not replayed in the metaanalysis [OR 0.77 (95%CI;0.49-1.21)].
Conclusions: Despite the appearance of new SBCE models, there are no differences in diagnostic yield; therefore, SBCE endoscopist’s performance should be based on experience and availability.
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Modified method of patency judgement using patency capsule prior to capsule endoscopy in clinical practice. Sci Rep 2022; 12:14335. [PMID: 35995963 PMCID: PMC9395361 DOI: 10.1038/s41598-022-18569-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 08/16/2022] [Indexed: 11/09/2022] Open
Abstract
In 2012, Japan approved the use of a tag-less patency capsule (PC), which evaluates gastrointestinal patency before small-bowel capsule endoscopy (SBCE). This study aimed to evaluate the validity of our modification on the passage criteria for this PC in clinical practice. We retrospectively enrolled 326 consecutive patients who underwent PC examination before SBCE. If X-ray could not reveal the PC in the body during the judgement time (30–33 h after ingestion), we defined it as ‘estimated patency’ and performed SBCE. We employed plain computed tomography (CT) for the second judgement, as needed. The overall patency rate was 95.1%. By X-ray, 41 (12.6%) patients were judged to have ‘estimated patency’, and SBCE could be safely performed. Plain CT judgement was necessary in 106 patients (32.5%). One PC case had a residual coating film associated with stenosis in a patient with Crohn’s disease (CD), and one (0.3%) SBCE case had capsule retention resulting from false CT judgement. Multivariate analysis revealed that established CD and inpatient were factors related to no-patency. In conclusion, PC is useful for examining gastrointestinal patency, keeping in mind CT misjudgement. If PC was not found in the body via X-ray, performing SBCE as ‘estimated patency’ seemed appropriate.
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Predictive Markers of Crohn's Disease in Small Bowel Capsule Endoscopy: A Retrospective Study of Small Bowel Capsule Endoscopy. J Clin Med 2022; 11:jcm11154635. [PMID: 35956250 PMCID: PMC9369933 DOI: 10.3390/jcm11154635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/15/2022] [Accepted: 07/31/2022] [Indexed: 11/30/2022] Open
Abstract
To distinguish between functional gastrointestinal disorders like irritable bowel syndrome (IBS) and mild small bowel Crohn′s disease (CD) can be a burden. The diagnosis of CD often requires small bowel capsule endoscopy (SBCE). The main goal of this research was to find predictive markers to rule out clinically significant small bowel CD without SBCE. A retrospective study of 374 patients who underwent SBCE for suspected small bowel CD in Turku University Hospital in 2012−2020 was conducted. We gathered the patient′s laboratory, imaging and endoscopic findings at the time of SBCE. SBCE findings were graded along CECDAI (Capsule Endoscopy Crohn’s Disease Activity Index)-scoring system. Fecal calprotectin (FC), serum albumin and ESR were significantly different with patients diagnosed with CD and those with not. Hb and CRP had no significant differences between the two groups. Sensitivity, specificity, PPV and NPV for FC < 50 ug/g were 96.4%, 19.6%, 34.6% and 92.5% and for CECDAI (cut-off value 3) 98.2%, 90.3%, 81.1% and 99.1%, respectively. A CECDAI-score of 3 would be a reasonable cut-off value for small bowel CD. Small bowel CD is possible with FC < 100 ug/g. Our results suggest a follow-up with FC before SBCE for patients with no endoscopic ileitis, negative imaging results and FC < 50 ug/g before SBCE.
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Odeyinka O, Alhashimi R, Thoota S, Ashok T, Palyam V, Azam AT, Sange I. The Role of Capsule Endoscopy in Crohn's Disease: A Review. Cureus 2022; 14:e27242. [PMID: 36039259 PMCID: PMC9401636 DOI: 10.7759/cureus.27242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/25/2022] [Indexed: 12/09/2022] Open
Abstract
Crohn’s disease (CD) is a chronic inflammatory disorder with a predilection for the small bowel. Although awareness of this disorder has increased over the years, it remains a diagnostic challenge for many physicians. This is exacerbated by the rising incidence and high recurrence rate following therapy in certain individuals. It is currently agreed that a multimodality approach is the best one, but with the advent of new modalities, that could be changing. Furthermore, given its impact on the mental health of patients and the cost of treatment, it is pertinent that we arrive at not only convenient but accurate modalities in its diagnosis and management. Among these investigative modalities is the relatively novel capsule endoscopy (CE) that not only provides a more patient-friendly alternative but avoids the need for invasiveness. Asides from its diagnostic capability, its influence on therapy and monitoring of known CD patients following treatment has been shown. This article has reviewed the current literature comparing the relevance of CE with other available modalities in diagnosing CD patients. We explored its therapeutic impact and how it influences monitoring post-treatment in CD. This article also discusses the complications of CE and the possible solutions to these complications in the future.
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Patel A, Vedantam D, Poman DS, Motwani L, Asif N. Obscure Gastrointestinal Bleeding and Capsule Endoscopy: A Win-Win Situation or Not? Cureus 2022; 14:e27137. [PMID: 36017285 PMCID: PMC9392966 DOI: 10.7759/cureus.27137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/22/2022] [Indexed: 11/05/2022] Open
Abstract
Obscure gastrointestinal bleeding (OGIB) refers to bleeding of uncertain origin that persists or recurs after negative workup using any of the radiologic evaluation modalities. It can be divided into two types based on whether clinically evident bleeding is present, namely, obscure overt and obscure occult bleeding. As the visualization of the bowel mucosa is challenging, capsule endoscopy (CE) is the ideal go-to procedure as the process is wireless, ingestible, small, disposable, and, most importantly, non-invasive. This review article has compiled various studies to shed light on the guidelines for using CE, its structure and procedure, patient preferences, diagnostic yield, cost-effectiveness, and the future. The goal of this review is to show the influence of CE on OGIB on the aspects mentioned earlier.
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MicroRNA Profile of Human Small Intestinal Tumors Compared to Colorectal Tumors. J Clin Med 2022; 11:jcm11092604. [PMID: 35566730 PMCID: PMC9103422 DOI: 10.3390/jcm11092604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 04/28/2022] [Accepted: 05/03/2022] [Indexed: 11/17/2022] Open
Abstract
Small intestinal tumors (adenoma and adenocarcinoma, SIT) are rare, and their microRNA (miRNA) expression profiles have not been established. Previously, we reported a relationship between miRNA expression profiles and the development, growth, morphology, and anticancer drug resistance of colorectal tumors. Here, we demonstrate that the miRNA expression profile of SIT is significantly different from those of tumors of the colon. We compared the onco-related miRNA expression profiles of SIT and colorectal tumors and found them to be different from each other. The expressions of miR-143 and miR-145 were frequently downregulated in SIT and colorectal tumors but not in sessile serrated adenoma/polyp tumors. The profiles of SIT and colorectal carcinomas of miR-7, miR-21, and miR-34a were considerably different. Upregulation of miR-31 expression was not found in any SIT cases. Our data suggested that miR-143 and miR-145 might act as anti-oncomirs common to adenocarcinoma of the small intestine, similar to those of colorectal adenoma and other cancers. However, the expression profiles of the other miRNAs of SIT were significantly different from those of colorectal tumors. These findings contribute useful insights into the tumor development and diagnosis of SIT.
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Oka P, Sidhu R. Small bowel lymphoma: clinical update and challenges for the gastroenterologist. Curr Opin Gastroenterol 2022; 38:270-278. [PMID: 35275901 DOI: 10.1097/mog.0000000000000829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
PURPOSE OF REVIEW The diagnosis of small bowel lymphoma (SBL) can be challenging, as they are very rare and also have a varied presentation. In this review, we aim to provide a broad overview of the types of SBL and also about the various modalities used for their diagnosis. We also discuss the overview of treatment strategies for a gastroenterologist. RECENT FINDINGS Small bowel capsule endoscopy (SBCE) and devise-assisted enteroscopy (DAE) has revolutionized the way we investigate the small bowel. DAE also makes it possible to obtain histological samples for further characterization of SBL. This has led to a significant improvement in diagnosis and management of the disease in conjunction with cross-sectional imagining. SUMMARY The diagnosis and management of small bowel lymphoma remains challenging despite the development of newer techniques such as SBCE and DAE. The current available diagnostic modalities have limitations; in the absence of a gold standard, the current investigative modalities compliment each other in reaching the final diagnosis.
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Affiliation(s)
- Priya Oka
- Academic Department of Gastroenterology, Royal Hallamshire Hospital, Sheffield, UK
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Liu JH, Liu DY, Yuan YF, Sun XJ, Shan SM. Comparison of the performance of MS enteroscope series and Japanese double- and single-balloon enteroscopes. World J Gastroenterol 2022; 28:1329-1337. [PMID: 35645541 PMCID: PMC9099188 DOI: 10.3748/wjg.v28.i13.1329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/29/2021] [Accepted: 02/23/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Small intestine disease endangers human health and is not easy to locate and diagnose.
AIM To observe the effect of the MS series of small intestine endoscopes on the gastrointestinal tract, the changes in serum gastrin levels and intestinal tissue, and the time required for the examination.
METHODS In vivo experiments in 20 Living pigs were conducted, Bowel preparation was routinely performed, Intravenous anesthesia with propofol and ketamine was applied, the condition of the small intestine was observed and the detection time of the MS series of small intestine endoscopes were recorded, The changes in intestinal tissue using the MS series of small intestine endoscopes observed and compared before and after the examination, Venous blood (3-5 mL) from pigs was collected before and after the experiment; changes in intestinal tissue after use of the MS series of small intestine endoscopes observed after examination. After completion of each type of small intestine endoscope experiment, the pigs were allowed to rest and the next type of small intestine endoscope experiment was performed after 15 days of normal feeding. The detection time data of the single-balloon small intestine endoscope and double-balloon small intestine endoscope were collected from four hospitals.
RESULTS One case of Ascarislumbricoides, one of suspected Crohn's disease, one small intestinal diverticulum and one anesthesia accident were observed in pigs. The small intestine showed no differences in the MS series of small intestine endoscopes and there were no differences in serum gastrin between the groups (P > 0.05). The time required for inspection was recorded, and the overall detection time for the Japanese small intestine endoscopes was approximately 1.68 ± 0.16 h.
CONCLUSION Intestinal ascariasis is a common disease in pigs. Some pigs have abnormal intestinal variation. After continuous upgrade and improvement, the MS-3 and MS-4 small intestine endoscope appear superior in terms of detection time.
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Affiliation(s)
- Jin-Hua Liu
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China
- Department of General Surgery, Affiliated Dalian Municipal Friendship Hospital of Dalian Medical University, Dalian 116001, Liaoning Province, China
| | - Dan-Yang Liu
- Department of Endocrinology, Affiliated Dalian Municipal Friendship Hospital of Dalian Medical University, Dalian 116001, Liaoning Province, China
| | - Yong-Feng Yuan
- College of Computer Science and Technology, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China
| | - Xue-Jun Sun
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China
| | - Shu-Mei Shan
- General Manager Office, Dalian Ming Sheng Technology Development Co., Ltd., Dalian 116001, Liaoning Province, China
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23
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Papaefthymiou A, Koffas A, Laskaratos FM, Epstein O. Upper gastrointestinal video capsule endoscopy: The state of the art. Clin Res Hepatol Gastroenterol 2022; 46:101798. [PMID: 34500118 DOI: 10.1016/j.clinre.2021.101798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 07/28/2021] [Accepted: 08/16/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND Video capsule can illuminate the entire gastrointestinal mucosa. Upper gastrointestinal capsule endoscopy (UGICE) has the potential to survey for oesophageal, gastric and duodenal pathology and determine whether biopsy or intervention is indicated. AIMS This review traces the evolution of foregut video capsule endoscopy. METHODS A broad literature research was performed independently by two investigators. Extracted articles were organized and evaluated to interpret all current data. RESULTS In contrast to small bowel capsule, UGICE required sequential innovations to deal with rapid oesophageal transit, the irregular shape of the stomach and unpredictable gastric peristalsis. Oesophageal capsule endoscopy required the development of a two-camera device operating at a high frame rate, and postural change was developed to improve image capture, especially at the level of the Z-line, thus providing good imaging of Barrett's oesophagus, erosive oesophagitis and oesophageal varices, with optimal patients' tolerance. UGICE in patients presenting to the emergency room with acute bleeding has demonstrated accuracy when deciding on the need for emergency intervention. The latest development of a high frame rate UGICE, designed to image the oesophagus, stomach and duodenum has overtaken dedicated oesophageal capsule development. Capsule control is possible by exposing a magnetised capsule to an external magnetic field, and early reports indicate high accuracy in the oesophagus and stomach with high levels of patient acceptability. There is little information on cost-benefit. CONCLUSIONS Capsule endoscopy offers gastroenterologists a new device to investigate the upper gastrointestinal tract with promising future potential.
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Affiliation(s)
- Apostolis Papaefthymiou
- Department of Gastroenterology, General University Hospital of Larisa, Mezourlo, Larisa 41110, Greece; First Laboratory of Pharmacology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Macedonia, Greece
| | - Apostolos Koffas
- Department of Gastroenterology, General University Hospital of Larisa, Mezourlo, Larisa 41110, Greece
| | - Faidon-Marios Laskaratos
- Endoscopy Unit, Digestive Diseases Centre, Barking Havering and Redbridge University Hospitals NHS Trust, London, United Kingdom
| | - Owen Epstein
- Centre for Gastroenterology, Royal Free Hospital, Pond St, London NW3 2QG, United Kingdom..
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Qian L, Gu Y, Zheng L, Xia T. Diagnostic value of capsule endoscopy and double-balloon enteroscopy in small bowel diseases. Am J Transl Res 2022; 14:328-335. [PMID: 35173850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 11/25/2021] [Indexed: 09/28/2022]
Abstract
OBJECTIVE To analyze the diagnostic value of capsule endoscopy (CE) and double-balloon enteroscopy (DBE) in small bowel diseases. METHODS The clinical data of 134 cases of CE and 109 cases of DBE examined in our gastroscopy room from January 2016 to December 2019 were retrospectively analyzed. The two groups of patients were compared as to disease diagnostic rate, examination time, examination tolerance, and incidence of adverse reactions. RESULTS The two groups showed no significant difference in general data (all P>0.05). The DBE group showed a higher disease diagnostic rate than the CE group (P<0.05). Significantly higher rates of suspected intestinal bleeding were observed in the DBE group than those of the CE group (P<0.05), but no significant differences were found in the diagnosis of unexplained abdominal pain, abdominal distension, and others (all P>0.05). The DBE group required a longer examination time, and had a higher incidence of adverse reactions, and a lower examination tolerance than the CE group (P<0.05). CONCLUSION Both DBE and CE are effective in small bowel diseases diagnoses, but DBE demonstrated greater potential in diagnosing small bowel bleeding.
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Affiliation(s)
- Lijuan Qian
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University No. 188 Shizi Street, Gusu District, Suzhou 215000, Jiangsu, China
| | - Yijie Gu
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University No. 188 Shizi Street, Gusu District, Suzhou 215000, Jiangsu, China
| | - Lu Zheng
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University No. 188 Shizi Street, Gusu District, Suzhou 215000, Jiangsu, China
| | - Tingting Xia
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University No. 188 Shizi Street, Gusu District, Suzhou 215000, Jiangsu, China
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Ando T, Sakumura M, Mihara H, Fujinami H, Yasuda I. A Review of Potential Role of Capsule Endoscopy in the Work-Up for Chemotherapy-Induced Diarrhea. Healthcare (Basel) 2022; 10:healthcare10020218. [PMID: 35206833 PMCID: PMC8871585 DOI: 10.3390/healthcare10020218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 01/13/2022] [Accepted: 01/21/2022] [Indexed: 11/29/2022] Open
Abstract
Chemotherapy-induced diarrhea (CID) is a common, severe side effect of chemotherapy, immunotherapy, and targeted therapy. Because patients are more prone to continuing chemotherapy if they do not suffer from CID, appropriate diagnosis and monitoring of this disease are essential. However, suitable monitoring methods are yet to be developed. To date, several studies have shown that small-bowel capsule endoscopy (SBCE) is useful in visualizing the entire small intestinal mucosa and detecting small intestinal abnormalities, including bleeding, malignant tumors, and mucosal injury, associated with the use of nonsteroidal anti-inflammatory drugs and low-dose aspirin. Currently, limited studies have evaluated the small intestinal mucosa using SBCE in patients receiving fluoropyrimidine-based chemotherapy or immune checkpoint inhibitors. These studies have reported that small intestinal mucosal injury is common in patients with severe fluoropyrimidine-induced diarrhea. SBCE might be a useful screening method for the early detection of enterocolitis induced by immune checkpoint inhibitors. SBCE may be a powerful tool for the diagnosis and monitoring of CID, and understanding its indication, contraindication, and capsule-retention risk for each patient is important for clinicians.
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Affiliation(s)
- Takayuki Ando
- Correspondence: ; Tel.: +81-76-434-7300; Fax: +81-76-434-5027
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Niwa Y, Tominaga K, Kawata Y, Kobayashi T, Mizuwasa T, Takahashi K, Sato H, Kohisa J, Abe S, Kamimura K, Yokoyama J, Kawai H, Sugino H, Umezu H, Hirai Y, Nakano M, Shimada Y, Kameyama H, Wakai T, Terai S. Intestinal duplication diagnosed preoperatively with double-balloon enteroscopy: an extremely rare case report and literature review. Clin J Gastroenterol 2022; 15:381-387. [DOI: 10.1007/s12328-022-01596-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 01/14/2022] [Indexed: 11/30/2022]
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Nakamura M, Kawashima H, Ishigami M, Fujishiro M. Indications and Limitations Associated with the Patency Capsule Prior to Capsule Endoscopy. Intern Med 2022; 61:5-13. [PMID: 34121000 PMCID: PMC8810252 DOI: 10.2169/internalmedicine.6823-20] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The retention of the capsule used during small bowel capsule endoscopy (SBCE) is a serious complication that can occur in patients with known or suspected small bowel stenosis, and a prior evaluation of the patency of the gastrointestinal (GI) tract is therefore essential. Patency capsule (PC) is a non-diagnostic capsule the same size as the diagnostic SBCE. To date, there are no clear guidelines regarding the contraindications for undergoing a PC evaluation prior to SBCE. Each small bowel disorder has specific occasions to inhibit the progress of PC and SBCE, even though they do not have any stenotic symptoms or abnormalities on imaging. In this review, we summarize the indications and limitations of PC prior to SBCE, especially the contraindications, and discuss clinical scenarios in which even PC should be avoided, and therefore such areas of stenosis should be evaluated by alternative modalities. We thus propose this new algorithm to evaluate the patency of the GI tract for patients with suspected and known small bowel stenosis in order that they may undergo SBCE safely.
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Affiliation(s)
- Masanao Nakamura
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Japan
| | | | - Masatoshi Ishigami
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Japan
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Japan
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Small Bowel Malignancies in Patients Undergoing Capsule Endoscopy for Iron Deficiency Anemia. Diagnostics (Basel) 2021; 12:diagnostics12010091. [PMID: 35054257 PMCID: PMC8774472 DOI: 10.3390/diagnostics12010091] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/14/2021] [Accepted: 12/29/2021] [Indexed: 11/16/2022] Open
Abstract
Small bowel malignancies are rare and usually asymptomatic or symptoms are nonspecific. Therefore, small bowel tumors are difficult to diagnose. In patients with iron deficiency anemia (IDA) who have negative bidirectional endoscopy results, the small bowel may be considered the source of bleeding. However, in asymptomatic IDA patients with negative bidirectional endoscopy results, evidence supporting the routine use of capsule endoscopy (CE) is insufficient. CE can be considered in selected patients with recurrent or persistent IDA. The frequency of small bowel malignancies is low in patients undergoing CE for IDA, but the usefulness of CE for the diagnosis of small bowel malignancies in younger age groups with IDA has been reported. For patients with risk factors for small bowel malignancy, investigation of the small bowel should be considered. Efforts should be made to prevent adverse events, such as capsule retention or capsule aspiration, through meticulous history taking and endoscopic capsule delivery as necessary.
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Nejati S, Wang J, Heredia-Rivera U, Sedaghat S, Woodhouse I, Johnson JS, Verma M, Rahimi R. Small intestinal sampling capsule for inflammatory bowel disease type detection and management. LAB ON A CHIP 2021; 22:57-70. [PMID: 34826326 DOI: 10.1039/d1lc00451d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Although serum and fecal biomarkers (e.g., lactoferrin, and calprotectin) have been used in management and distinction between inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS), none are proven to be a differential diagnostic tool between Crohn's disease (CD) and ulcerative colitis (UC). The main challenge with laboratory-based biomarkers in the stool test is the inability to indicate the location of the disease/inflammation in the gastrointestinal (GI) tract due to the homogenous nature of the collected fecal sample. For the first time, we have designed and developed a battery-free smart capsule that will allow targeted sampling of inflammatory biomarkers inside the gut lumen of the small intestine. The capsule is designed to provide a simple and non-invasive complementary tool to fecal biomarker analysis to differentiate the type of IBD by pinpointing the site of inflammatory biomarkers secretion (e.g., small or large bowel) throughout the GI tract. The capsule takes advantage of the rapid change from an acidic environment in the stomach to higher pH levels in the small intestine to dissolve a pH-sensitive polymeric coating as a means to activate the sampling process of the capsule within the small intestine. A swelling polyacrylamide hydrogel is placed inside the capsule as a milieu to collect the sampled GI fluid while also providing the required mechanical actuation to close the capsule once the sampling is completed. The hydrogel component along with the collected GI fluid can be easily obtained from the capsule through the screw-cap design for further extraction and analysis. As a proof of concept, the capsule's performance in sampling and extraction of bovine serum albumin (BSA) and calprotectin - a key biomarker of inflammation - was assessed within the physiologically relevant ranges. The ratio of extracted biomarkers relative to that in the initial sampling environment remained constant (∼3%) and independent of the sampling matrix in both in vitro and ex vivo studies. It is believed that the demonstrated technology will provide immediate impact in more effective IBD type differential diagnostic and treatment strategies by providing a non-invasive assessment of inflammation biomarkers profile throughout the digestive tract.
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Affiliation(s)
- Sina Nejati
- School of Materials Engineering, Purdue University, West Lafayette, IN, 47907, USA.
- Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA
| | - Jiangshan Wang
- Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA
- Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Ulisses Heredia-Rivera
- School of Materials Engineering, Purdue University, West Lafayette, IN, 47907, USA.
- Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA
| | - Sotoudeh Sedaghat
- School of Materials Engineering, Purdue University, West Lafayette, IN, 47907, USA.
- Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA
| | - Ian Woodhouse
- School of Materials Engineering, Purdue University, West Lafayette, IN, 47907, USA.
- Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA
| | - Jay S Johnson
- USDA-ARS Livestock Behavior Research Unit, West Lafayette, IN 47907, USA
| | - Mohit Verma
- Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA
- Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, IN 47907, USA
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Rahim Rahimi
- School of Materials Engineering, Purdue University, West Lafayette, IN, 47907, USA.
- Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA
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Panintestinal capsule endoscopy in patients with celiac disease. Eur J Gastroenterol Hepatol 2021; 33:e1022-e1026. [PMID: 34138763 DOI: 10.1097/meg.0000000000002205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
INTRODUCTION Capsule endoscopy has proven its utility in diagnosing villous atrophy and lymphoma in patients with celiac disease. Recently, a novel capsule endoscopy system was introduced which enables the examination of the small and large bowel. So far, it has not been evaluated in patients with celiac disease. OBJECTIVE The primary objective of this study was to evaluate the novel panintestinal capsule endoscopy system in patients with celiac disease. METHODS Eleven patients with histologically proven celiac disease (Marsh 0-IV), who underwent a panintestinal capsule endoscopy between March 2018 and April 2019 at our institution, were included in this retrospective single-center study. All patients performed standard bowel preparation prior to the examination. Diagnostic yield, safety and therapeutic impact were analyzed. In addition, the correlation between capsule endoscopy findings and the histology of the duodenal mucosa was assessed. RESULTS Panintestinal capsule endoscopy was feasible and produced an acceptable visualization quality in all cases. Concordance of capsule endoscopy findings with the Marsh classification showed a good correlation (r = 0.8). No lymphomas were detected. Evaluation of the colon revealed diminutive polyps (median size 4 mm) in 18% of patients. CONCLUSIONS The novel panintestinal capsule endoscopy system shows a fair correlation with the Marsh classification in patients with celiac disease. It is also capable of identifying colon polyps. Therefore, the novel panintestinal capsule endoscopy system can be considered for patients with celiac disease and an indication for capsule endoscopy.
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Kim W, Lee B, Yoo A, Kim S, Joo M, Park JJ. Predictors of Positive Video Capsule Endoscopy Findings for Chronic Unexplained Abdominal Pain: Single-Center Retrospective Study and Meta-Analysis. Diagnostics (Basel) 2021; 11:diagnostics11112123. [PMID: 34829470 PMCID: PMC8617728 DOI: 10.3390/diagnostics11112123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 11/13/2021] [Accepted: 11/14/2021] [Indexed: 11/26/2022] Open
Abstract
Video capsule endoscopy (VCE) is an effective diagnostic modality for detecting small bowel lesions. However, the value of VCE for patients with chronic recurrent abdominal pain (CAP) of unknown etiology remains obscure. We retrospectively analyzed factors that could predict enteropathy based on the medical records of 65 patients with unexplained chronic recurrent abdominal pain (CAP) who were assessed using VCE between 2001 and 2021. We also conducted a systematic review and meta-analysis of the literature to validate our results. The positive findings of 27 (41.5%) of the 65 patients were mostly ulcerative lesions including stricture (n = 14, 60.9%) and erosion (n = 8, 29.7%). Multivariate analysis identified elevated ESR (OR, 1.06, 95% CI, 1.02–1.1, p = 0.004) as a significant risk factor for enteropathy predicted by VCE. Three eligible studies in the meta-analysis included 523 patients with CAP. Elevated C-reactive protein (CRP) (OR, 14.09; 95% CI, 2.81–70.60; p = 0.001) and erythrocyte sedimentation rate (ESR) (OR, 14.45; 95% CI, 0.92–227.33; p = 0.06) indicated VCE-positive findings in patients with unexplained abdominal pain. Elevated levels of the inflammatory markers ESR and CRP can thus predict positive VCE findings in patients with CAP.
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Affiliation(s)
| | - Beomjae Lee
- Correspondence: ; Tel.: +82-2-2626-3004; Fax: +82-2-853-1943
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McDonald MJ. Acute Gastrointestinal Bleeding – Locating the Source and Correcting the Disorder. PHYSICIAN ASSISTANT CLINICS 2021. [DOI: 10.1016/j.cpha.2021.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Capsule Endoscopy: Pitfalls and Approaches to Overcome. Diagnostics (Basel) 2021; 11:diagnostics11101765. [PMID: 34679463 PMCID: PMC8535011 DOI: 10.3390/diagnostics11101765] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 09/21/2021] [Indexed: 12/15/2022] Open
Abstract
Capsule endoscopy of the gastrointestinal tract is an innovative technology that serves to replace conventional endoscopy. Wireless capsule endoscopy, which is mainly used for small bowel examination, has recently been used to examine the entire gastrointestinal tract. This method is promising for its usefulness and development potential and enhances convenience by reducing the side effects and discomfort that may occur during conventional endoscopy. However, capsule endoscopy has fundamental limitations, including passive movement via bowel peristalsis and space restriction. This article reviews the current scientific aspects of capsule endoscopy and discusses the pitfalls and approaches to overcome its limitations. This review includes the latest research results on the role and potential of capsule endoscopy as a non-invasive diagnostic and therapeutic device.
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Crohn's Disease Only Visible on Small Bowel Capsule Endoscopy: A New Entity. Dig Dis Sci 2021; 66:2712-2716. [PMID: 32809105 DOI: 10.1007/s10620-020-06553-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 08/08/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS In rare cases, the diagnosis of Crohn's disease (CD) can only be achieved using small bowel capsule endoscopy (SBCE). We investigate the characteristics of patients with CD only visible on SBCE and assess their disease course. METHODS Data of all adult patients with confirmed CD diagnosis based on SBCE with normal endoscopic and cross-sectional imaging findings were retrospectively collected in three tertiary-level hospitals from January 2014 to March 2020. RESULTS Thirteen patients were included. Ten patients were females, and the mean age at diagnosis was 36 years. Ileum was mostly involved (85%), while duodenum and jejunum were affected in 23% and 38% of the cases, respectively. Nine patients had one segment involved, while four subjects had two or three segments affected. All patients had inflammatory behavior. First treatment consisted of steroids in all cases, and six patients were later treated with immunosuppressant or biologics. After a mean follow-up of 27.5 months, no change in disease behavior, hospitalization, or CD-related surgery was observed. CONCLUSIONS CD only visible at SBCE is a rare condition with a more favorable disease course compared to general CD with a lower rate of complicated behavior, hospitalization, and surgery, despite a similar use of immunosuppressant or biologics.
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Ji H, Wang S, Gong Y. A Descriptive Analysis of Capsule Endoscopy Events in the FDA Manufacturer and User Facility Device Experience (MAUDE) Database. JOURNAL OF DIGESTIVE ENDOSCOPY 2021; 12:71-77. [PMID: 38770130 PMCID: PMC11104222 DOI: 10.1055/s-0041-1731960] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Introduction The malfunction of capsule endoscopy (CE) devices is a significant reason for the failure of CE procedures, which could hinder and prevent diagnosis. Unfortunately, malfunction-related adverse events (AEs) caused by CE devices are rarely reported in publications. Although most malfunction-related AEs could not lead to physical harm, they could reduce the efficiency of medical care and increase medical costs. The manufacturer and user facility device experience (MAUDE) database, a publicly accessible resource for patient safety, contains not only the common complications of CE but also valuable malfunction-related AEs, which have been underutilized. Therefore, the study aims to discover and analyze the possible AEs associated with CE and demonstrate the utility of the MAUDE reports to promote patient safety. Materials and Methods We acquired MAUDE reports of CE systems from January 01, 2008, to July 31, 2020, through a systematic search strategy. We utilized the manufacturers, brand names, and product codes as search terms from which medical device reports including structured data and narrative texts were extracted, followed by a manual review of the narrative texts, reporter occupation, device involved, event type and the phase of the event; finally, patient outcomes were recorded and analyzed as per CE categories and characteristics. Results A total of 377 CEs medical device reports were retrieved, and 342 reports were included after reviewing. There were 327 mandatory reports (96%) and 15 voluntary reports (4%). These reports referred to capsule endoscope (n = 213), sensing system (n = 66), patency capsule (n = 38), and capsule delivery device (n = 26). A total of 349 CE-related AEs were identified, including complications (n = 228), malfunction-related AEs (n = 109), and other events (n = 12). The composition of AEs was not the same for the CE devices. Complications were major AEs of capsule endoscope and patency capsule, but malfunction-related AEs were the most common in AEs of sensing systems and capsule delivery devices. Conclusion MAUDE serves as an invaluable data source for investigating malfunction-related AEs. In addition to common complications, malfunction of CE devices could threaten patient safety in CE procedures. Improving awareness of the malfunction of CE devices and raising adequate training for staff working in gastrointestinal (GI) endoscopic units could be critical and beneficial in preventing malfunction-related AEs.
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Affiliation(s)
- Hangyu Ji
- China Academy of Chinese Medical Sciences Guang’anmen Hospital, Beijing, People’s Republic of China
| | - Shaoli Wang
- China Academy of Chinese Medical Sciences Guang’anmen Hospital, Beijing, People’s Republic of China
| | - Yang Gong
- School of Biomedical Informatics, University of Texas Health Science Center at Houston, Texas, United States
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The Optimal Timing for Using Capsule Endoscopy for Patients with Gastrointestinal Bleeding. BIOMED RESEARCH INTERNATIONAL 2021; 2021:7605324. [PMID: 33855082 PMCID: PMC8019631 DOI: 10.1155/2021/7605324] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 03/12/2021] [Accepted: 03/22/2021] [Indexed: 12/17/2022]
Abstract
Objectives Capsule endoscopy (CE) is a useful diagnostic modality for patients with occult gastrointestinal (GI) bleeding. However, most previous studies utilizing CE have focused on techniques, patient characteristics, safety and feasibility, and case analyses. Studies evaluating the optimal timing for utilizing CE, which is an essential factor for obtaining a better diagnostic yield, remain scarce in the literature. Considering that a CE examination is expensive, we, therefore, undertook this study to evaluate, analyze, and determine the optimal time for performing CE in patients with occult GI bleeding. Methods Seventy-five patients were initially recruited, but finally, sixty patients with significant GI bleeding with an unknown etiology after traditional endoscopic examinations were included in the study. All data were collected from a local hospital in Taiwan, encompassing the period from 2010 to 2018. The relationship between the timing of CE examination and the diagnostic correction rate (DCR) was then analyzed statistically. Results More female (58.3%) and older adult (68.3%) patients were in our study. Based on the four analytical models used in the study, the results showed that the most optimal time to perform CE is within three days after GI bleeding occurs.
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Application of Artificial Intelligence in Gastrointestinal Endoscopy. J Clin Gastroenterol 2021; 55:110-120. [PMID: 32925304 DOI: 10.1097/mcg.0000000000001423] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 08/07/2020] [Indexed: 12/24/2022]
Abstract
Artificial intelligence (AI), also known as computer-aided diagnosis, is a technology that enables machines to process information and functions at or above human level and has great potential in gastrointestinal endoscopy applications. At present, the research on medical image recognition usually adopts the deep-learning algorithm based on the convolutional neural network. AI has been used in gastrointestinal endoscopy including esophagogastroduodenoscopy, capsule endoscopy, colonoscopy, etc. AI can help endoscopic physicians improve the diagnosis rate of various lesions, reduce the rate of missed diagnosis, improve the quality of endoscopy, assess the severity of the disease, and improve the efficiency of endoscopy. The diversity, susceptibility, and imaging specificity of gastrointestinal endoscopic images are all difficulties and challenges on the road to intelligence. We need more large-scale, high-quality, multicenter prospective studies to explore the clinical applicability of AI, and ethical issues need to be taken into account.
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Small intestinal mucosal injury and its risk factors in patients with gastrointestinal cancer who developed complicated fluoropyrimidine-induced diarrhea. BMC Gastroenterol 2020; 20:355. [PMID: 33109089 PMCID: PMC7590606 DOI: 10.1186/s12876-020-01507-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 10/19/2020] [Indexed: 12/22/2022] Open
Abstract
Background Diarrhea is a common adverse event of fluoropyrimidine-based chemotherapy. However, limited data are available on the frequency and risk factors of complicated chemotherapy-induced diarrhea (CID) and small intestinal mucosal damage. In this current study, we aimed to determine the incidence of complicated CID and mucosal injury among patients with complicated CID receiving fluoropyrimidine via small bowel capsule endoscopy (CE) and determined baseline risk factors associated with complicated CID. Methods In total, 536 patients with advanced or recurrent gastrointestinal cancer who received fluoropyrimidine-based chemotherapy were retrospectively analyzed. Diarrhea was evaluated using the Common Terminology Criteria for Adverse Events version 4. Complicated CID was defined according to the American Society of Clinical Oncology guidelines. To evaluate small intestinal mucosal injury in patients with complicated CID, CE was performed. Multivariate analysis was performed to identify risk factors for complicated CID. Results Total number of 32 (6%) patients developed complicated CID. Complicating symptoms were noted in 25 (78%) patients, with cramping, vomiting, and sepsis being observed in 15 (60%), 8 (32%), and 3 (12%) patients, respectively. Among the 13 patients who underwent CE, 11 (85%) showed abnormal findings. Multivariate analysis revealed that oral fluoropyrimidine administration was a risk factor for complicated CID (odds ratio 2.95; 95% confidence interval 1.06–8.19). Conclusions Despite the relatively low incidence of complicated CID, mucosal injury of small intestine was common in patients with complicated fluoropyrimidine-induced diarrhea and oral fluoropyrimidine was an independent risk factor.
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Yoo AY, Lee BJ, Kim WS, Kim SM, Kim SH, Joo MK, Kim HJ, Park JJ. Clinicopathological Features of Small Bowel Tumors Diagnosed by Video Capsule Endoscopy and Balloon-Assisted Enteroscopy: A Single Center Experience. Clin Endosc 2020; 54:85-91. [PMID: 32892518 PMCID: PMC7939772 DOI: 10.5946/ce.2020.047] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 06/20/2020] [Indexed: 02/06/2023] Open
Abstract
Background/Aims Small bowel malignancies often present a diagnostic challenge due to their relative rarity and nonspecific clinical symptoms. However, technical developments in endoscopic instruments, including video capsule endoscopy (VCE) and enteroscopy, have allowed for the visualization of the entire small bowel. This study aimed to investigate the clinicopathological features of small bowel malignant tumors diagnosed by VCE and double-balloon enteroscopy (DBE) in a single tertiary center.
Methods We retrospectively analyzed VCE and DBE findings from Korea University Guro Hospital from January 2010 through September 2018.
Results A total of 510 VCE and 126 DBE examinations were performed in 438 patients. Small bowel malignancies were diagnosed in 28 patients (15 males; mean age, 61.0 years; range, 42 to 81 years). Among them, 8 had lymphoma, 8 had primary adenocarcinoma, 7 had gastrointestinal stromal tumor (GIST) and 5 had metastatic cancer. Abdominal pain and obstructive symptoms were the most common findings in metastatic cancers (4/5, 80%). On the other hand, obscure gastrointestinal bleeding was the most common symptom of GIST (6/7, 85.7%) and adenocarcinoma (3/8, 37.5%).
Conclusions Approximately 6% of the patients who underwent either VCE or DBE were diagnosed with small bowel malignancy. These findings demonstrated the different clinical characteristics among small bowel malignancies and merit further study.
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Affiliation(s)
- Ah Young Yoo
- Division of Gastroenterology, Department of Internal Medicine, Korea University Guro Hospital, Korea University, College of Medicine, Seoul, Korea
| | - Beom Jae Lee
- Division of Gastroenterology, Department of Internal Medicine, Korea University Guro Hospital, Korea University, College of Medicine, Seoul, Korea
| | - Won Shik Kim
- Division of Gastroenterology, Department of Internal Medicine, Korea University Guro Hospital, Korea University, College of Medicine, Seoul, Korea
| | - Seong Min Kim
- Division of Gastroenterology, Department of Internal Medicine, Korea University Guro Hospital, Korea University, College of Medicine, Seoul, Korea
| | - Seung Han Kim
- Division of Gastroenterology, Department of Internal Medicine, Korea University Guro Hospital, Korea University, College of Medicine, Seoul, Korea
| | - Moon Kyung Joo
- Division of Gastroenterology, Department of Internal Medicine, Korea University Guro Hospital, Korea University, College of Medicine, Seoul, Korea
| | - Hyo Jung Kim
- Division of Gastroenterology, Department of Internal Medicine, Korea University Guro Hospital, Korea University, College of Medicine, Seoul, Korea
| | - Jong-Jae Park
- Division of Gastroenterology, Department of Internal Medicine, Korea University Guro Hospital, Korea University, College of Medicine, Seoul, Korea
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Lai H, Wang X, Cai J, Zhao X, Han Z, Zhang J, Chen Z, Lin Z, Zhou P, Hu B, Li A, Liu S. Standing-type magnetically guided capsule endoscopy versus gastroscopy for gastric examination: multicenter blinded comparative trial. Dig Endosc 2020; 32:557-564. [PMID: 31483889 PMCID: PMC7318584 DOI: 10.1111/den.13520] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 08/27/2019] [Indexed: 02/05/2023]
Abstract
AIM To compare feasibility and safety after gastrointestinal checkup by standing-type magnetically controlled capsule endoscopy (SMCE) and conventional gastroscopy. METHODS This was a prospective multicenter, blinded study that compared SMCE with gastroscopy in patients from April 2018 to July 2018. All patients first underwent SMCE and then subsequently had gastroscopy with i.v. anesthesia. We calculated the compliance rates of gastric lesion detection by SMCE using gastroscopy as the standard. Capsule retention rate, incidence of adverse events, and patient satisfaction were documented throughout the study. RESULTS One hundred and sixty-one patients who completed SMCE and gastroscopy were included in the analysis. Positive compliance rate among SMCE and gastroscopy was 92.0% (95% CI: 80.77%-97.78%). Negative compliance rate was 95.5% (89.80%, 98.52%). Moreover, overall compliance rate was 94.41% (89.65%, 97.41%). Sixty-four pathological outcomes were identified. Of these 64 outcomes, 50 were detected by both procedures. The gastroscopy method neglected seven findings (such as five erosions, one polyp, and one ulcer). Furthermore, SMCE also overlooked seven lesions (i.e. one erosion, two polyps, one atrophy, and three submucosal tumors). Capsule retention or related adverse events were not reported. CONCLUSION Standing-type magnetically controlled capsule endoscopy provides equivalent agreement with gastroscopy and may be useful for screening of gastric illnesses without any anesthesia.
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Affiliation(s)
- Hua‐sheng Lai
- Guangdong Provincial Key Laboratory of GastroenterologyDepartment of GastroenterologyNanfang HospitalSouthern Medical UniversityGuangzhouChina
| | - Xin‐ke Wang
- Guangdong Provincial Key Laboratory of GastroenterologyDepartment of GastroenterologyNanfang HospitalSouthern Medical UniversityGuangzhouChina
| | - Jian‐qun Cai
- Guangdong Provincial Key Laboratory of GastroenterologyDepartment of GastroenterologyNanfang HospitalSouthern Medical UniversityGuangzhouChina
| | - Xin‐mei Zhao
- Guangdong Provincial Key Laboratory of GastroenterologyDepartment of GastroenterologyNanfang HospitalSouthern Medical UniversityGuangzhouChina
| | - Ze‐long Han
- Guangdong Provincial Key Laboratory of GastroenterologyDepartment of GastroenterologyNanfang HospitalSouthern Medical UniversityGuangzhouChina
| | - Jie Zhang
- Guangdong Provincial Key Laboratory of GastroenterologyDepartment of GastroenterologyNanfang HospitalSouthern Medical UniversityGuangzhouChina
| | - Zhen‐yu Chen
- Guangdong Provincial Key Laboratory of GastroenterologyDepartment of GastroenterologyNanfang HospitalSouthern Medical UniversityGuangzhouChina
| | - Zhi‐zhao Lin
- Guangdong Provincial Key Laboratory of GastroenterologyDepartment of GastroenterologyNanfang HospitalSouthern Medical UniversityGuangzhouChina
| | - Ping‐hong Zhou
- Department of GastroenterologyZhongshan HospitalFudan UniversityShanghaiChina
| | - Bing Hu
- Department of GastroenterologyWest China HospitalSichuan UniversityChengduChina
| | - Ai‐min Li
- Guangdong Provincial Key Laboratory of GastroenterologyDepartment of GastroenterologyNanfang HospitalSouthern Medical UniversityGuangzhouChina
| | - Si‐de Liu
- Guangdong Provincial Key Laboratory of GastroenterologyDepartment of GastroenterologyNanfang HospitalSouthern Medical UniversityGuangzhouChina
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Klang E, Barash Y, Margalit RY, Soffer S, Shimon O, Albshesh A, Ben-Horin S, Amitai MM, Eliakim R, Kopylov U. Deep learning algorithms for automated detection of Crohn's disease ulcers by video capsule endoscopy. Gastrointest Endosc 2020; 91:606-613.e2. [PMID: 31743689 DOI: 10.1016/j.gie.2019.11.012] [Citation(s) in RCA: 121] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 11/03/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS The aim of our study was to develop and evaluate a deep learning algorithm for the automated detection of small-bowel ulcers in Crohn's disease (CD) on capsule endoscopy (CE) images of individual patients. METHODS We retrospectively collected CE images of known CD patients and control subjects. Each image was labeled by an expert gastroenterologist as either normal mucosa or containing mucosal ulcers. A convolutional neural network was trained to classify images into either normal mucosa or mucosal ulcers. First, we trained the network on 5-fold randomly split images (each fold with 80% training images and 20% images testing). We then conducted 10 experiments in which images from n - 1 patients were used to train a network and images from a different individual patient were used to test the network. Results of the networks were compared for randomly split images and for individual patients. Area under the curves (AUCs) and accuracies were computed for each individual network. RESULTS Overall, our dataset included 17,640 CE images from 49 patients: 7391 images with mucosal ulcers and 10,249 images of normal mucosa. For randomly split images results were excellent, with AUCs of .99 and accuracies ranging from 95.4% to 96.7%. For individual patient-level experiments, the AUCs were also excellent (.94-.99). CONCLUSIONS Deep learning technology provides accurate and fast automated detection of mucosal ulcers on CE images. Individual patient-level analysis provided high and consistent diagnostic accuracy with shortened reading time; in the future, deep learning algorithms may augment and facilitate CE reading.
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Affiliation(s)
- Eyal Klang
- Department of Diagnostic Imaging, Sheba Medical Center, Tel Hashomer, Israel; Sackler Medical School, Tel Aviv University, Tel Aviv, Israel; DeepVision Lab, Sheba Medical Center, Tel Hashomer, Israel
| | - Yiftach Barash
- DeepVision Lab, Sheba Medical Center, Tel Hashomer, Israel
| | | | - Shelly Soffer
- Department of Diagnostic Imaging, Sheba Medical Center, Tel Hashomer, Israel; Sackler Medical School, Tel Aviv University, Tel Aviv, Israel; DeepVision Lab, Sheba Medical Center, Tel Hashomer, Israel
| | - Orit Shimon
- Department of Diagnostic Imaging, Sheba Medical Center, Tel Hashomer, Israel
| | - Ahmad Albshesh
- Department of Gastroenterology, Sheba Medical Center, Tel Hashomer, Israel
| | - Shomron Ben-Horin
- Department of Gastroenterology, Sheba Medical Center, Tel Hashomer, Israel
| | | | - Rami Eliakim
- Department of Gastroenterology, Sheba Medical Center, Tel Hashomer, Israel
| | - Uri Kopylov
- Department of Gastroenterology, Sheba Medical Center, Tel Hashomer, Israel
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Al Hillan A, Curras-Martin D, Carson M, Gor S, Ezeume A, Gupta V, Copcaalvarez A, Beri G, Bermann M, Asif A. Capsule Endoscopy Transit Time to Duodenum: Relation to Patient Demographics. Cureus 2020; 12:e6894. [PMID: 32064217 PMCID: PMC7003722 DOI: 10.7759/cureus.6894] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background Anesthesia guidelines recommend fasting for at least two hours to minimize aspiration risk related to endoscopic procedures, and the American Society for Gastrointestinal Endoscopy (ASGE) states that the final oral preparation liquid can be administered three to eight hours before the procedure. We have observed the cancellation of endoscopy procedures if liquids were consumed within four, six, or eight hours of the start time. Objectively, documenting gastric transit time via a review of pill endoscopy data could address clinician concerns, prevent delays in patient care, and improve the rate at which our clinicians practice within national guidelines. The objective was to utilize capsule endoscopy data from our center to report the relationship between patient factors that could affect gastric transit time (GTT) and small bowel transit time (SBTT) such as chronic kidney disease (CKD), diabetes mellitus (DM), nutritional status, and obesity. Methods This retrospective review obtained data on adult pill endoscopy (PillCam™ SB 3) (Medtronic, Minneapolis MN) studies on in- and outpatients. Past medical history and laboratory data were abstracted from electronic medical records. Mean GTT and SBTT are reported in minutes + standard deviation (SD) and times were compared accounting for conditions that could prolong transit, such as diabetes mellitus or chronic kidney disease (CKD). Results One hundred and sixty-three records reviewed. Four patients were excluded as the pill did not pass out of the stomach. The mean age was 66 years, 57% were female, and 26% were evaluated for gastrointestinal (GI) bleeding. The mean GTT for all patients (n = 159) was 35 + 49 with a median of 19 minutes. There were no statistically significant differences in GTT between the following subgroups: CKD0 (n = 100) 40 + 58 versus CKD5 (n = 11) 35 + 39, albumin > 3.0 (n = 123) 37 + 53 versus albumin < 3.0 (n = 36) 27 + 30, diabetes mellitus (DM) (n = 40) 51 + 71 vs. non-DM (n = 119) 42 + 79, body mass index (BMI) > 30, or aspirin use. The SBTT results in all patients (n = 124) was 238 + 88 minutes. Similarly, there was no relation between SBTT and albumin, any CKD, CKD0 versus CKD5, DM status, or BMI. The patients with the capsule stuck in the stomach did not have any other clinical history to explain this occurrence. Conclusions This analysis of objective data regarding pill endoscopy found that the mean GTT was 44 minutes, and it was < 60 minutes for 85% of the cohort. Patient factors were not associated with longer transit times, and this is the first report to document PillCam times in relation to CKD. These data support recommendations that endoscopic procedures, in accordance with anesthesia and ASGE guidelines, can be safely conducted in the majority of patients within 60 minutes of ingesting liquids.
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Affiliation(s)
- Alsadiq Al Hillan
- Internal Medicine, Jersey Shore University Medical Center, Neptune, USA
| | | | - Michael Carson
- Internal Medicine, Jersey Shore University Medical Center, Neptune, USA
| | - Shreya Gor
- Internal Medicine, Jersey Shore University Medical Center, Neptune, USA
| | - Adaeze Ezeume
- Internal Medicine, Jersey Shore University Medical Center, Neptune, USA
| | - Varsha Gupta
- Internal Medicine, Jersey Shore University Medical Center, Neptune, USA
| | | | - Gagan Beri
- Gastroenterology, Jersey Shore University Medical Center, Neptune, USA
| | - Mordechai Bermann
- Internal Medicine, Jersey Shore University Medical Center, Neptune, USA
| | - Arif Asif
- Internal Medicine, Jersey Shore University Medical Center, Neptune, USA
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Tobella J, Pons-Beltrán V, Santonja A, Sánchez C, Campillo-Fernández AJ, Vidaurre A. Analysis of the ‘Endoworm’ prototype’s ability to grip the bowel in in vitro and ex vivo models. Proc Inst Mech Eng H 2020; 234:468-477. [DOI: 10.1177/0954411920901414] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Access to the small bowel by means of an enteroscope is difficult, even using current devices such as single-balloon or double-balloon enteroscopes. Exploration time and patient discomfort are the main drawbacks. The prototype ‘Endoworm’ analysed in this paper is based on a pneumatic translation system that, gripping the bowel, enables the endoscope to move forward while the bowel slides back over its most proximal part. The grip capacity is related to the pressure inside the balloon, which depends on the insufflate volume of air. Different materials were used as in vitro and ex vivo models: rigid polymethyl methacrylate, flexible silicone, polyester urethane and ex vivo pig small bowel. On measuring the pressure–volume relationship, we found that it depended on the elastic properties of the lumen and that the frictional force depended on the air pressure inside the balloons and the lumen’s elastic properties. In the presence of a lubricant, the grip on the simulated intestinal lumens was drastically reduced, as was the influence of the lumen’s properties. This paper focuses on the Endoworm’s ability to grip the bowel, which is crucial to achieving effective endoscope forward advance and bowel folding.
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Affiliation(s)
- Javier Tobella
- Centre for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Valencia, Spain
| | - Vicente Pons-Beltrán
- Digestive Endoscopy Unit, Digestive Diseases Department, La Fe Polytechnic University Hospital, Valencia, Spain
- Gastrointestinal Endoscopy Research Group, IIS Hospital La Fe, Valencia, Spain
| | | | - Carlos Sánchez
- Department of Electronic Engineering, Universitat Politècnica de València, Valencia, Spain
| | | | - Ana Vidaurre
- Centre for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Valencia, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
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Bhuller SB, Lieser M, Ismail N, Woods B. Obscure gastrointestinal bleeding localization using preoperative super-selective mesenteric angiography and intraoperative methylene blue injection: A case report and literature review. Int J Surg Case Rep 2019; 65:69-72. [PMID: 31689632 PMCID: PMC6838790 DOI: 10.1016/j.ijscr.2019.10.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/24/2019] [Accepted: 10/24/2019] [Indexed: 11/30/2022] Open
Abstract
OGIB can be a diagnostic challenge. Superselective mesenteric angiography with intraoperative methylene blue injection can be used as an adjunct to pre-existing diagnostic modalities. Superselective mesenteric angiography can guide surgical intervention to control hemorrhage and limit the amount of bowel resected.
Introduction Currently available diagnostic tests for localizing the source of gastrointestinal bleeding include esophagogastroduodenoscopy, colonoscopy, push enteroscopy, video capsule endoscopy, deep enteroscopy, nuclear scan, angiography, radiographic contrast studies of the small bowel, intraoperative enteroscopy, and computed tomography scanning. Despite these diagnostic modalities obscure gastrointestinal bleeding (OGIB) can be difficult to localize, making surgical intervention challenging. Presentation of case We report the case of a 78-year-old patient who presented with OGIB, melena and passing bright red blood per rectum, with a hemoglobin of 4.8 g/dl requiring multiple blood transfusions. Initially the source of the bleeding was difficult to identify. Eventually, a preoperative superior mesenteric angiogram was performed, identifying an arteriovenous malformation (AVM) within the small bowel as the source of OGIB. Intraoperative methylene blue was then injected through the previously placed angiogram catheter to further localize the bowel segment with the lesion. Discussion Despite multiple diagnostic modalities, OGIB, especially originating in the small bowel, is challenging to localize, making surgical intervention difficult. Methylene blue is frequently used intraoperatively to properly identify anatomic landmarks. Conclusion In cases of OGIB, superselective mesenteric angiography (SSMA) with intraoperative methylene blue injection can be used as an adjunct to routine diagnostic modalities to guide surgical interventions for controlling hemorrhage and for limiting the extent of bowel resection.
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Affiliation(s)
- Sidra B Bhuller
- Department of Surgery, Sky Ridge Medical Center, 10101 RidgeGate Parkway, Lone Tree, CO 80124, USA.
| | - Mark Lieser
- Department of Trauma Surgery, Research Medical Center, 2316 E Meyer Blvd, Kansas City, MO 64132, USA
| | - Naveed Ismail
- Department of Surgery, Sky Ridge Medical Center, 10101 RidgeGate Parkway, Lone Tree, CO 80124, USA
| | - Bradley Woods
- Department of Trauma Surgery, Research Medical Center, 2316 E Meyer Blvd, Kansas City, MO 64132, USA
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